More on: Raspberry Pi Model B+

Raspberry Pi Model B+The Raspberry Pi Foundation has up-graded the Raspberry Pi Model B but, for industrial users, “we’ll be keeping Model B in production for as long as there’s demand for it”, said the Foundation’s Eben Upton.

The new board is the Model B+, which should not be thought of as a Raspberry Pi 2, added Upton.

What is different?

  • GPIO header extended to 40 pins. First 26 pins exactly the same as 26 pin header on original.
  • Two extra USB ports bringing total to four.
  • SD Card socket is now a Micro SD Card socket.
  • On-board regulators are now switchers, saving from 0.5 to 1W.
  • Lower power consumption. By replacing linear regulators with switching ones we’ve reduced power consumption by between 0.5W and 1W.More USB. We now have 4 USB 2.0 ports, compared to 2 on the Model B, and .
  • Composite video now emerges from a fourth pin on the 3.5mm audio jack.
  • The connectors have bene moved to put them along two sides of the Pi, not all four.
  • There are now four mounting holes, and the board corners have been rounded.

Raspberry Pi Model B+ pinout

What is the same?

  • The SoC remains the Broadcom BCM2835 (ARM11 v6 archtecture).
  • RAM is 512Mbyte
  • Model B software runs on the B+
  • element 14 and RS are suppliers
  • Camera (CSI) and display (DSI) connectors stay

The power supply clean-up extends to “better hotplug and overcurrent behaviour” on the USB, said Upton, and “the audio circuit incorporates a dedicated low-noise power supply”.

Extensions to the IO include ID-SC and ID-SD which form an I2C bus for external EEPROM so boards plugged into the 40pin header can identify themselves to allow the IO to be configured by the ARM processor.

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